[spec] OpenCL Linear Algebra Libraries

• ViennaCL: http://viennacl.sourceforge.net/
  • Supports: CG, BiCGStab, GMRES, ILU preconditioning on CPU, Jacobi preconditioning.
  • Looks active and supported: recent commits to the code, active mailing list.
  • Supports CSR.
  • Supports some BLAS 1, 2, and 3 operations.
  • A cursory look didn't find any assembly operations - however, handles to the matrix structures can be accessed for assembly to be done outside the library.
  • Is very much by C++ programmers, for C++ programmers.